Update and rename README.md to Update Strip and Strip++ entry in README.md

Author: MarcBoule

README.md Update Strip and Strip++ entry in README.md

@@ -212,7 +212,7 @@ Separators take the form of Divider Labels (for labelling sections of your contr
 
 ### Preserving mappings in saved selections
 
-In order to preserve mappings in saved selections, they should be recalled using Stoermelder's [Strip++](https://library.vcvrack.com/Stoermelder-P1/StripPp) module. Mappings are also preserved when using Stoermelder's Strip module.
+In order to preserve mappings in saved VCV Rack _selections_, they should be recalled using Stoermelder's [Strip++](https://library.vcvrack.com/Stoermelder-P1/StripPp) module. Mappings are also preserved when using Stoermelder's [Strip](https://library.vcvrack.com/Stoermelder-P1/Strip) module (for single contiguous rows of modules only, using a proprietary format different than VCV Rack selections).
 
 ### Master Chan